8731632 has 80 divisors (see below), whose sum is σ = 27776000. Its totient is φ = 2301696.

The previous prime is 8731627. The next prime is 8731637. The reversal of 8731632 is 2361378.

8731632 is digitally balanced in base 2, base 5 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8731627) and next prime (8731637).

It is a nude number because it is divisible by every one of its digits.

8731632 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 8731632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8731637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3369 + ... + 5367.

It is an arithmetic number, because the mean of its divisors is an integer number (347200).

Almost surely, 2^8731632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8731632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13888000).

8731632 is an abundant number, since it is smaller than the sum of its proper divisors (19044368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8731632 is a wasteful number, since it uses less digits than its factorization.

8731632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030 (or 2024 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 8731632 is about 2954.9335017898. The cubic root of 8731632 is about 205.9199739430.

The spelling of 8731632 in words is "eight million, seven hundred thirty-one thousand, six hundred thirty-two".